Sealed can



March 1, 1932. H. SEBE4LL 1,847,270

SEALED CAN Filed Oct. 4, 1929 Fig.1.

Fig.2.

lnvenTor.

Harry Se ell M WL/M ATTys.

Patented Mar. 1, 1932 UNETED STATES P TENT foFFIcE HARRY SEBELL, OFBOSTON, MASSACHUSETTS, ASSIGNOR T ARTHUR H. PARKERLOI LEXINGTON,MASSACHUSETTS v SEALED OAK Y Application filed October 4, 1929/ s m 1%.397,173.

This invention relates to a can of the type in which the cover fits overthe outside of the can at the open end (such a can being sometimesreferred to as aslip-on cover) and in which said cover is sealed to thecan by means of a channelled or U-shaped sealing strip.

In sealing a canof this type with a 'so-called slip-on cover by means ofa U -shaped sealing strip it has been proposed to form in the can bodyan outwardly-extending fold to pro- Vide an outwardly-extending sealingflange which mates a sealing flange formed on the bottom of the cover,the U-shaped sealing strip embracing the two flanges thus formed.

It has been found from practice that the making of a sealing flange onthe can body in the form of an outwardly-extending fold is I apt toresult in cracking the material of the can body and thus making itimpossible to 2 hermetically seal the can.

One of the objects of my present invention is to provide a novelconstruction with a so-called slip-on cover which can be sealed with achannelled-shaped sealing strip but which will be free from theobjection above noted.

In order to give an understanding of the invention I have illustrated inthe drawings a selected embodiment thereof which will now be describedafter which the novel features will be pointed out in the appendedclaims;

Fig. 1 is a sectional view of a cover for a sealed can embodying myinvention;

Fig. 2 is a vertical view through the upper portion of the can Fig. 3 isa sectional view showing the can sealed;

Fig. 4 is a sectionalperspective view of the sealing strip. a

In the drawings .1 indicates the can body and 2 the cover. The cover isof the so-called slip-on variety, that is, it is provided with adepending flange or skirt 3 which fits over an upstanding curb orportion 4: at the upper end of the can body 1. The cover is made with anoutwardly-directed sealing flange 5 at the lower edge of the skirt 3 andthe can body is formed with a sealing shoulder 6 immediately beneath thecurb 4, this shoulder extending outwardly and the curb rising from theouter edge thereof. The can is sealed through the medium of a sealingstrip 7 which has a channel shape in cross section and which embracesthe'sealing flange 5 and one leg of which underlies the sealin shoulder.6,

i it being understood that a suitable gasket 8 maybe employed betweenthe can cover and the upper edge of the can body if desired.

The sealing strip 7 is so made'that the two .7

legs 9 and 10 thereof are of unequallength, the shorter leg9 overlyingthe sealing flange 5 and the longer leg extending underneath the sealingshoulder 6. This sealing strip is applied to the can in the usual wayand it serves to retainthe cover firmly in position and to produce anhermetic sea V The sealing shoulder 6 maybe provided for in a variety ofwayswithout departing from the upper endofthe can body is indentedperipherally as shown at .11, the indentation providing. an annular orperipheral groove on the exterior of the can body. The upper wall ofthis groove constitutes the sealing shoulder 6. It is possible to form.a shoulder in this way'without any danger of. breaking or crack. ing themetal 'of' the can body because the formation of the annular groove doesnot subject the material of the can body to such severe strains as isinvolved in making a fold in the wall of the can body as above referredto. f

1 The groove-11 and the sealing shoulder 6 can be readily formed byaspinning or pressing operation and without any danger of cracking orbreaking the material of the can. My invention, therefore, provides asimple but practical means for sealing, by means of a slip-on cover. 7

There is an otheradvantage in this can and that is that the sealingflange 5 extends out the invention.v In the construction shown vchannel-shaped sealing strip, a can having a by grasping the can in onehand and grasping the cover by the sealing flange in the other hand.

The under side of the sealing flange is freely exposed for applyingpressure thereto in removing the can cover from the can body and henceit will not be necessary ordinarily to use an implement for thispurpose.

In making the can body I will preferably so form it as to present aslight bead 12 at the junction of the curb 4c and the shoulder 6.

The shape of this bead is such as to fit the more or less rounded corner13 where the sealing flange 5 of the cover joins the skirt 3. lVith thecan having this head 12 there will be no gap existing between the underside of the flange 5 and the shoulder 6;

I claim.

1. A sealed can comprising a can body having at its upper end anupstanding curb portion, a cover fitting over said curb portion andprovided at its lower edge with an out wardly-directed sealing flange,said can body being formed with an exterior downwardlyfacing shoulderbeneath the curb and in substantially the plane of the under face of thesealing flange and a channel-shaped sealing strip embracing the sealingflange of the cover and having one leg underlying the sealing shoulderof the can body.

2. A sealed can comprising a can body having adjacent its open end andan annular exterior groove having a flat horizontal upper wall whichforms a sealing shoulder, a cover having a depending skirt portionfitting over the portion of the can above the groove, said skirt havingat its lower edge an outwardlydirected sealing flange, a channel-shapedsealing strip having one leg longer than the other, said strip embracingthe sealing flange of the cover with its shorter leg overlying saidflange and its longer leg underlying the sealing shoulder. v

3. A sealed can comprising a can body having adjacent its upper end anannular exterior groove having a flat horizontal upperwall which forms adownwardly-facing sealing shoulder, a cover having a depending skirtportion fitting over the portion of the can above the groove, said skirtportion having at its lower edge an outwardly-directed sealing flange,the lower face of which is in substantially the same plane as said flathorizontal upper wall, a channel-shaped sealing striphavingone leglonger than the other and embracingthe sealing flange,'the shorter legoverlying said flange and the longer leg gnderlying and engaging thesealing shoul- In testimony whereof I have signed my name to thisspecification.

HARRY SEBELL.

